Pigment granulation

Details Pigment granulation Pigment granulation

1998-09-24

1999-10-12

Green, Anthony

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106494, 106498, C09B 6702, C09B 6710

Patent

active

059649380

ABSTRACT:
The invention relates to a process for granulating a free-flowing pulverulent organic pigment, which comprises treating the pigment at a temperature from 15 to 120.degree. C. with from 7 to 200% by weight, based on the dry weight of the pigment, of at least one gaseous inert substance which contains oxygen in its molecule, is liquid at 20.degree. C./1 bar and has a boiling point of not more than 150.degree. C.

REFERENCES:
patent: 4134725 (1979-01-01), Buchel et al.
patent: 4264552 (1981-04-01), McMahon et al.
patent: 5082498 (1992-01-01), Kurtz et al.
patent: 5173116 (1992-12-01), Roth
Derwent Abstr. 91-126428 for EP 424896 (May 1991).
Derwent Abstr. 79-33626B for FR 2405983 (May 1979).
Derwent Abstr. 77-86951Y for FR 2352582 (Dec. 1977).
Derwent Abstr. 73-65881U for FR 2179137 (Nov. 1973).
Chemical Abstract No. 127:360020, abstract of Japanese Patent Specification No. 09-272812, Oct. 1997.
WPIDS Abstract No. 73-65881U, abstract of German Patent Specification No. 2,317,175, Nov. 1973.
WPIDS Abstract No. 77-86951Y, abstract of German Patent Specification No. 2,723,221, Dec. 1977.
WPIDS Abstract No. 78-33761A, abstract of German Patent Specification No. 2,748,243, May 1978.
WPIDS Abstact No. 79-33626B, abstract of German Patent Specification No. 2,844,710, Apr. 1979.
WPIDS Abstract No. 91-001012, abstract of European Patent Specification NO. 403,917, Dec. 1990.
WPIDS Abstract No. 92-358655, abstract of European Patent Specification No. 510392, Oct. 1992.

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